In the modern everyday life the public finance plays the main role in the world of finance and therefore, its efficient management and transparency is becoming a crucial component for the prosperity and well-being of each particular country. In turn, a cornerstone of the public finance is taxation and, therefore, for each individual it is essential to have highly protected not only inborn rights but also fiscal rights, as far as they are taxpayers. Because the public finance stands on the shoulders of the taxpayers there is a fundamental need to have highly protected taxpayers fiscal rights, which mainly consists two parts: 1) How justly and efficiently taxed money is collected and 2) How transparently and efficiently taxed money used to be spent. Therefore, to develop the model that tries to measure how well taxpayers fiscal rights are protected is a big challenge but at the same time, in the case of successful endeavor we will have developed a real model, which could contribute to the great degree a protection of taxpayers fiscal rights in any particular country. Therefore, our aim in this MA thesis will be to develop Taxpayers’ Index that measures how well taxpayers fiscal rights are protected from the legal point of view, and also to discuss a particular mathematical model (for analysis), which will help us to analyze the obtained information from the Taxpayers’ Index.